Sandal upper



FIG. 1 is a perspective view of a sandal upper according to the present invention;

FIG. 2 is a top view of the sandal upper according to FIG. 1;

FIG. 3 is a left side view of the sandal upper according to FIG. 1;

FIG. 4 is a right side view of the sandal upper according to FIG. 1;

FIG. 5 is a front view of the sandal upper according to FIG. 1; and,

FIG. 6 is a rear view of the sandal upper according to FIG. 1.

Environmental features shown in broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for sandal upper, as shown and described. 